Brush-stapling machine.



No. 801,026. PATENTED 00T. 3, 1905. W. G.LIEBLG.

BRUSH STAPLING MACHINE.

-APPLIUMION FILED SEPT. 5, 190s.

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1v1-MESSE@ IWVEWTQR PATENTED OCT. 3, 1905.

W. G. LIEBIG. .BRUSH STAPLING MACHINE.

APPLIUATION FILED SEPT. 6, 1903.

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PATENTED OCT. 3, 1905.

W. G. LIEBIG.

BRUSH STAPLING MACHINE.

APPLICATION FILED SEPT. 5, 1903.

4 SHEETS-SHEET 3.

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No. 801,026. PATENTE@ 00T.V 3, 1905.'

W. G. LIEBIG. I

BRUSH STAPLING MACHINE.

APPLIoATIoN FILED sBPT.5. 1903.

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WITNESSES IN2/WIW? rrnn sTAgns WILLIAM G. LIEBIG, OF DETROIT, MICHIGAN.

BRUSH-STAPLING MACHINE.

Y No. 801.026.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed September 5, 1903. Serial No. 172,047.

T0 all whmn it Wbay concern:

Be it known that I, VILLIAM G. LIEBIG, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvenient in Brush-Stapling Machines; and l declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to brush-making machines, and has for its object improvements in that part of a brush-making machine which relates more especially to the making and driving of the staple by which the bristles of the brush are secured in the head. l

It also has for its object improvements in that part of the machine which is used to insert the bristles.

In the drawings, Figure l is a perspective of the complete machine. Fig. 2 is an elevation showing details of the staple making and driving head. Fig. 3 is a plan view of a grip device by which the wire is fed to make the staple. Fig. 4 is a plan view of the entire machine, showing more especially the gearing employed to speed and time the operations. Fig. 5 is a det-ail of a part of the staple-making head. Fig'. 6 is a detail view of the same with the parts shown in a position diiferent from that in which the parts are shown in Fig. 5. Fig. 7 is a longitudinal sectional view on the line 7 7 of Fig. 8. Fig. 8 is a detail perspective view of the staple-forming mechanism. Fig. 9 is a detail view of the plunger-actuating means and its connected parts.

A and B indicate the standards which support a table C, on which the main parts of the machine are assembled.

D D indicate brackets which support the staple making and driving head.

E indicates a bracket which supports the plunger-actuating lever.

F indicates one of a pair of brackets in which is ournaled the shaft of a cam which actuates the plunger-lever 1.

Under the table C is a bracket G, which supports a rotary brush-supporting table H, and above the table H, hanging from the table C, is a hollow bristle-guide 3. There is a passage 4 through the table C, affording a way for the mass of bristles and the staple from above the table C to the brush-block on the table H. The bristles are fed to the passage 4 from the side of Vthe machine under a guide 2, that projects from a guide-block 5. The bristles pass under the end of the guide block 5 and under the block 6, which after the formation of the staple takes a position close down to the top of the table C. The block 6 is a cutter, a guide, and a staple-former. It cuts the Wire from which the staple is to be formed, it is a guide for the plunger, and it coacts with an anvil 7 to form the staple. The block 6 is lifted by a spring 61, which engages under the forward end of lever 11. The wire from which the staple is formed enters the space between guide 5 and guide 8 through a hole in an adjustable shear-block 9, that projects through the oaiide S. The shear-block 9 has that face o it which lies toward the front and toward the block 6 arranged at an angle to the wire which passes through it, the wire emerging from the shearing-block 9 against the inclined side of a groove 10 in the side of the block 6 which at the bottom forward edge of the groove 10 coacts with the shear-block 9 to cut the wire, making it pointed.

A lever 11 engages loosely through a hole 12 in the block 6, and the lever 1 1 is oscillated by a cam 12 on shaft 13. The lever 11 lifts the block. 6 to allow the wire to be fed through the shear-block 9 and across the ath of the hammer and forces it down to end the ends of the severed portion of wire over the anvil 7. The ends of the staple thus formed are directed downward toward the hole 4, and the short portions of wire which form the legs of the staples lie in grooves or creases 15 and 16, extending along the larger groove, which guides the plunger 17. The anvil 7 is at the end of a long arm, which reciprocates from front to rear and which is actuated in such reciprocation by the pin 1S, which engages in a cam-groove in the face of cam-wheel 19 on the shaft 13.

A tuft of bristles is placed manually on the table C in front of the pusher 191 and between that and the opening under thel guide 2. The pusher drives .the tuft of bristles under the guide 2 until the tuft is stopped against the face of the vertical-guide S and the middle part of the tuft is over the hole 4 and is under the end of the plunger 17, With the anvil 7 above it and between it and the IOO end of the plunger. The tuft of bristles is now in position to be embraced between the legs of the staple, which isfornied of that portion of the wire that lies over the anvil and projects at each side of the anvil between the guides and 3 and is in position to be driven through the hole al., with the staple straddling it, and to be driven down through the guide 3 into the back block of the brush. The guide 3 is provided with side notches 3, through which the tuft of bristles is drawn by the operator. The pusher 191 is actuated in its forward motion by a cam 2O on the shaft 131 geared hy miter-gearing to shaft 13 and journaled in bearings which rise from the table C. The pusher 191` is withdrawn. mainly by spring 21, but is aided by a hook 22, that rides on a pin 23 on the cam 20. It is desirable to withdraw the pusher quickly in order that the operator may have the longest possible time to place the tuft of bristles in front of the pusher, and therefore the withdrawal of the pusher is effected by the spring 21, which should act as soon as the cam 2() rotates far enough to bring its high point out of contact with the end of the pusher, (or with the antifriction wheel 192,) but it sometimes happens that a bristle or similar substance catches under the guide 2 or under the end of the guide 5 and prevents the action of the spring, and in order that this may not stop the retreat of the pusher the pin 23 is placed in the face of the cam and engages under the hook 22. As soon as the high point of the cam has passed off from the wheel 192 the cam-arm produces an initial and positive retreat movement of the pusher 191,should there be any excess of friction. due to the presenceof foreign bodies between the pusher and the guide, and the spring acts as soon as such excess of friction has been overcome, acting at once, if there is no foreign body present.

The wire from which the staple is made is fed from a reel R between the parts of sliding j aw-actuator 24 and 25, which are actuated in their forward or feeding movement by cam 26 on the end of shaft 132, that is suitably journaled in bearings from. the table C and which is connected by miter-gearing with shaft 13 and also by miter-gearing 133 with miter-gearing 134 on counter-shaft 135,which. lies directly below the main shaft 136.

Between shaft 136 and shaft 135 is a speedreducing gear 139, and there is a further reduction of speed between shaft 135 and shaft 132 but in the further chain of gearing the movement of the several parts are in equal time, though not simultaneous. The main shaft is provided with a cone-clutch .137, that slides along the shaft into an engagement with belt-wheel 13S, and the belt-wheel 13S is a loose wheel on the shaft 136, clutched to it by the clutch 137, which is actuated by a lever. (Not shown in the drawings.)

The sliding jaw-actuator 241 and 25 slides in guides 26/ and 27, with the wire between the parts. At the front of the sliding jawactuator 24 and 25 is a block 30, to which are pivoted two jaws 23 and 29. The rear end of each aw is provided with a slanting hole, through which projects a pin from that part of the jaw-actuator which lies immediately behind it. The block 30 is connected to the actuator 28 and 29 by a light spring 31,which retracts it with the -backward movement of the actuator, but because of the frictional engagement between the points of the jaws and the wire allows the block to separate from the actuators and the jaws to spread somewhat, because of the engagement of the pins 32 and 33 in the slanting holes 34 and The actuator parts themselves are retracted by a stronger spring 36, which acts immediately when. the high point of the cam 26 passes the antifriction-roller 37.

The hammer 17 is actuated on its down stroke by hammer-lever 1, pivoted in brackets E and actuated by cam 38, which engages roller 39 on the lever. The lifting movement of the hammer .is produced by spring 10, aided by a starting-hook 41, that :rides on a pin 12 on the cam 33, and is similar in its action to the starting-hook 22, hereinbefore described.

Throughout the several claims following where I mention for convenience the stationary guide-blockH I refer to the block having the guides 5 and 3 as distinguished from the vertically-movable block 6, stationary being simply a relative term.

What I claim is 1. In a brush-making machine, the combination with a pusher adapted to push a tuft of bristles, a cam-driver for said pusher, resilient means for retracting said pusher, and a hook coupling the pusher te the cam-driver and arranged to retract the pusher should the spring fail to perform its function.

2. In a brush-making machine, a plunger for inserting the tufts of bristles, a spring for retracting the plunger, and means for positively retracting said plunger should the spring fail to perform its function.

3. In a brush-m aking machine, the combination with a pusher adapted to push a tuft of bristles, a camdriver for the pusher, means for retracting the pusher, and means for coupling the pusher to the cam-driver to retract the pusher, should the :first-mentioned means fail to perform its function.

4. In a brush-making machine, a plunger for inserting the tuft of bristles, a cam-driver therefor, spring-actuated means for imparting upward movement to the plunger, and means for positively imparting such movement-to the plunger, should the spring fail to perform its function.

5. In a brush-making machine, a plunger for inserting the tuft of bristles, a cam-driver IOO IIO

for' the plunger, a retraetor for said plunger, first-mentioned means fail to perform its and means for Coupling the same to the oamfunction. 1o driver. In testimony whereof I sign this specifica- 6. In a brush-making machine, a plunger tion in the presence of two Witnesses. 5 for inserting a staple with a tuft of bristles, WILLIAM G. LIEBIG.

means for driving the same7 a resiliently-ao- Witnesses: tuated retraotor for the plunger, and means CHARLES F. BURTON7 for positively retraeting the same should the MAY E. KOTT. 

